71085066 has 32 divisors (see below), whose sum is σ = 157250688. Its totient is φ = 21280320.

The previous prime is 71085013. The next prime is 71085089. The reversal of 71085066 is 66058017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9430 + ... + 15201.

It is an arithmetic number, because the mean of its divisors is an integer number (4914084).

Almost surely, 2^71085066 is an apocalyptic number.

71085066 is an abundant number, since it is smaller than the sum of its proper divisors (86165622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71085066 is a wasteful number, since it uses less digits than its factorization.

71085066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24686.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 71085066 is about 8431.1960005684. The cubic root of 71085066 is about 414.2470811492.

The spelling of 71085066 in words is "seventy-one million, eighty-five thousand, sixty-six".